On Feb 2, 2009, at 10:27 PM, Kris Tilford wrote: > > I have a dual 2.3 GHz G5 and it's been a slight pain with the PCI > slots. I too was unsure of what they are, and figuring it out was the > biggest pain. I'm confident they're called "PCI-X" which means "PCI > eXtended", they're basically like normal PCI slots with an "eXended" > section beyond the standard length. The newer Macs have "PCI-e" which > are sometimes also referred to (incorrectly) as PCIx or PCI-X or PCIe > which means "PCI Express". These come in a variety of lengths and are > totally different than standard PCI slots. > > PCI-X are extended 64-bit slots that are keyed 3.3v only. This rules > out all 5v standard PCI cards, but any 3.3v or universal PCI card will > work, in addition to all PCI-X cards (kinda rare). Just today I needed > a couple more USB ports and thought I'd stick a standard PCI 1394/USB2 > combo card into my G5, but no, it was keyed 5v. I looked on eBay and > most PCI cards sold now are universal (meaning they have both 5v and > 3.3v keyways and auto adjust). I've used numerous other standard PCI > cards in my G5, as well as several PCI-X cards, and todays combo card > was the first 5v only card I've encountered that wouldn't work.
Well, Kris it looks like you're right. I would've sworn that no 1.8 G5 came with PCI-X. I thought that the extra long slots were just 64-bit PCI slots (like the old 64-bit slot on the Yikes.) But it appears that my early rev dual 1.8 does indeed have PCI-X. Like a solution looking for a problem, it makes me wonder what PCI-X cards are available for a Powermac. Eric --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed Low End Mac's G3-5 List, a group for those using G3, G4, and G5 desktop Macs - with a particular focus on Power Macs. The list FAQ is at http://lowendmac.com/lists/g-list.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to g3-5-list@googlegroups.com To unsubscribe from this group, send email to g3-5-list-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/g3-5-list?hl=en Low End Mac RSS feed at feed://lowendmac.com/feed.xml -~----------~----~----~----~------~----~------~--~---
